But then Shaye and Avi Arad, the longtime chairman and CEO of Marvel Studios, got into an argument over whether Iron Man should fly. (This is what grown men debate in the movie biz…) Bob contended that Iron Man would look goofy soaring in an iron suit. But Avi was adamant that the pic had to stay true to the comic book so the character should take to the sky. Eventually the option ran out, and Avi announced a deal with Merrill Lynch to self-finance Marvel’s future films. Now, most men would have left the argument there. Not Bob. He told his friends that he was so convinced Marvel would run into trouble on its Iron Man movie that he took out a big short on Marvel stock.